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9-2. Replacing the End Mark Sensor
To replace the top sensor, remove the sensor cover, and remove the T mark sensor ass’y.
To attach, press part a of the T mark sensor ass’y shown in the figure against the paper feed inlet A upper, and
secure it.
If there exists a space between the surface of the paper feed inlet A upper and T mark sensor ass’y, the end mark
may not be detected successfully.
To replace the bottom sensor, remove the double-feed detection unit, paper feed inlet A upper, paper feed
conveyance roller shaft, and upper door, and remove the paper feed inlet A lower together with the whole sensor.
To attach, press part b of the D mark sensor ass’y shown in the figure against the bottom of the paper feed inlet A
lower, and secure it.
Sensor cover
Double-feed detection unit
D mark sensor ass’y
T mark sensor ass’y
D mark sensor ass’y
Paper feed inlet A lower
Space: 0
Space: 0
Part a
(Press this against paper feed inlet A upper)
Paper feed inlet A upper
Sensor cover
T mark sensor ass’y
Paper feed inlet A upper
Paper feed
inlet A lower
Upper door
Conveyance shaft
Part b (Press this against bottom of paper feed inlet A lower)
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